25551211143000 has 256 divisors, whose sum is σ = 81147316947840. Its totient is φ = 6692419584000.

The previous prime is 25551211142999. The next prime is 25551211143041. The reversal of 25551211143000 is 34111215552.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52536942 + ... + 53021058.

Almost surely, 2^{25551211143000} is an apocalyptic number.

25551211143000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25551211143000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40573658473920).

25551211143000 is an abundant number, since it is smaller than the sum of its proper divisors (55596105804840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25551211143000 is a wasteful number, since it uses less digits than its factorization.

25551211143000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484455 (or 484441 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 25551211143000 its reverse (34111215552), we get a palindrome (25585322358552).

The spelling of 25551211143000 in words is "twenty-five trillion, five hundred fifty-one billion, two hundred eleven million, one hundred forty-three thousand".